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teymursaif / GCEx

A pipeline to identify and characterize extragalactic globular clusters

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Improve photometry

teymursaif opened this issue · comments

commented

Improve photometry by slightly resolved sources (EGCs):

  1. Curve of growth photometry (or other techniques?)
  2. increasing the speed of photometry, if possible
  3. aperture photometry for the exact subpixel coordinates
commented

The speed of the pipeline has been increased once cut-outs are used for aperture photometry using photutils.

commented

Aperture photometry for the exact x, and y (subpixel) coordinates is in place.

commented

Curve of Growth photometry would not help for the faint GCs. The best idea is to pre-select them based on aperture colours - not too small, not too large aperture - and then perform king+psf fitting ... nothing to do now, but in step 3/4